K DOUBLE-IMPELLER DOUBLE-IMPELLER ELECTRIC PUMPS ENERGY EFFICIENCY 7.5 TECHNICL DT Operating range: from,2 to 3 m 3 /h with head up to 97 metres. Pumped liquid: clean, free of solids and abrasives, non-viscous, nonaggressive, non-crystallised and chemically neutral, with properties similar to water. Liquid temperature range: K 35/4, K 45/5, K 35/, K 4/, K 55/ :from - C to +5 C K 55/5, K 66/, K 9/ K 7/3, K 8/3, K 7/4, K 8/4 :from -5 C to + C Maximum ambient temperature: +4 C Maximum operating pressure: K 35/4, K 35/, K 4/ :6 bar (6 kpa) K 45/5, K 55/5 :8 bar (8 kpa) K 55/, K 66/ : bar ( kpa) K 9/, K 7/3, K 8/3, K 7/4, K 8/4 :2 bar (2 kpa) Protection class: IP 55, IP 44 per K 35/4, K 45/5, K 55/5, K 35/, K 4/ Protection class at the terminal board: IP 55 sulation class: F Standard voltage: single-phase 22-24 V / three-phase 23-4 V / up to 4 included - 4 V Δ from 5,5 stallation: fixed, horizontal or vertical position, provided that the motor is always above the pump. Special executions on requests: alternative voltages and frequencies. CENTRIFUGL PUMPS PPLICTIONS Double-impeller centrifugal pump designed for the realisation of pressurization units in water systems and filling of pressure vessels. Suitable for sprinkler systems and other general water supply uses. CONSTRUCTION FETURES OF THE PUMP Pump body and motor support in cast iron. Technopolymer impeller. Carbon/ceramic mechanical seal. CONSTRUCTION FETURES OF THE Closed asynchronous type, external ventilation cooling. Rotor running on permanently lubricated ball bearings, oversized to ensure low noise and durability. Standard built-in thermo-amperometric protection. Capacitor permanently fitted on single phase versions. For the protection of the three-phase motor, we recommend the use of remote overload cut-outs, in compliance with current local regulations. Construction according to CEI 2-3. IE2 motors as standard, from,75 to 5,5 - IE3 7,5 DB PUMPS reserves the right to make modifications without notice. 27
MTERILS K DOUBLE-IMPELLER DOUBLE-IMPELLER ELECTRIC PUMPS No. PRTS * MTERILS S CENTRIFUGL PUMPS PUMP BODY CST IRON 2 UNI ISO 85 3 SUPPORT CST IRON 2 UNI ISO 85 4 IMPELLER 7 SHFT WITH ROTOR TECHNOPOLYMER K 35/4; K 45/5; K 35/; K 4/; K 55/ TECHNOPOLYMER B K 55/5; K 66/; K 9/; K 7/3; K 8/3; K 7/4; K 8/4 ISI 46 STINLESS STEEL X2CRS3 UNI 69/7 ISI 33 STINLESS STEEL XCRNIS 89 UNI 69/7 ISI 34 STINLESS STEEL X5 8 UNI 69/7 6 MECHNICL SEL CRBON / CERMIC K 35/4 K 45/5; K 55/5; K 35/; K 4/; K 55/; K66/; K 9/ K 7/3; K 8/3; K 7/4; K 8/4 28 GSKET NBR RUBBER K 35/4; K 45/5; K 55/5; K 55/; K 35/; K 4/ 34 INTERMEDITE DISC CST IRON 2 UNI ISO 85 * contact with the liquid GURNITL K 66/; K 9/; K 7/3; K 8/3; K 7/4; K 8/4 K 35/4; K 45/5; K 55/5; K 55/; K 66/; K 9/; K 7/3; K 7/4; K 8/3; K 8/4 K 35/4 28 3 6 K 45/5 - K 55/5 - K 35/ - K 4/ 28 3 6 4 34 7 4 34 7 K 55/ - K 66/ - K 9/ K 7/3 - K 8/3 K 7/4 - K 8/4 28 6 4 34 3 7 DB PUMPS reserves the right to make modifications without notice. 28
K DOUBLE-IMPELLER RNGE ELECTRIC PUMPS PERFORMNCE RNGE mm 2 /s and density equal to /m 3. Curve tolerance according to ISO 996. GRPHIC SELECTION TBLE,5 3 5 2 3 5 H H,5 3 5 2 3 5 kpa m 9 9 8 8 7 7 6 6 5 5 K double-impeller K Bigirante (Q < 3 m 3 /h) 4 4 Q US gpm Q IMP gpm H ft 25 2 5 CENTRIFUGL PUMPS 3 2 3 2 K double-impeller K Bigirante (Q < m 3 /h) 5, xx,2,3,4,5,6,8 2 3 4 5 6 8 2 3 Q m 3 /h xx Q l/s Q l/min SELECTION TBLE K 35/4 M-T Q= m 3 /h Q= l/min.2.8 2.4 3.6 4.8 6 7.2 9 9.6.8 2 5 8 24 3 2 3 4 6 8 2 5 6 8 2 25 3 4 5 43.5 4.5 4 38 33 23.5 K 45/5 M-T 5 49 47.5 46 42 37 3 K 55/5 M-T 62 6 58 57 52 45 34 K 35/ M-T 38.5 37.5 36.5 35 32 28.5 8.5 7.5 K 4/ M-T 44 43.4 42.5 4 39 35.7 29 26 8.5 K 55/ T 62 59.5 57 54.5 5 47 39 36 H (m) K 66/ T 73 7 67.5 64 6.5 57 49 47 K 9/ T 83.5 82 79.5 76.5 72.5 68 6 58 K 7/3 T 76 74 73 72 7.5 7 69 65 6.5 43.5 K 8/3 T 95 93 92.2 9 9.5 9 89.5 87 82 68 K 7/4 T 86 84 83.2 82.5 82 79 76 65 47 K 8/4 T 97 95 94.5 94 92 89 8 64 DB PUMPS reserves the right to make modifications without notice. 29
KE 35/4 - DOUBLE-IMPELLER CENTRIFUGL ELECTRIC PUMPS FOR WTER SUPPLY IN DOMESTIC, CIVIL, ND INDUSTRIL ENVIRONMENTS Pumped liquid temperature range: from - C to +5 C - Maximum ambient temperature: +4 C CENTRIFUGL PUMPS mm 2 /s and density equal to /m 3. Curve tolerance according to ISO 996. MX B C D E F G ØI H H H2 DN DNM ELECTRICL DT P2 NOMINL CPCITOR n. /min. μf Vc K 35/4 M x22-24 V ~.2.75 5.5 8.5 28 2 45 K 35/4 T 3x23-4 V ~.2.75 3.8-2.2 IE2 22.4-2.8 285 PCKING DIMENSIONS L/ L/B H K 35/4 342 8 76 48 72 5 48 9.5 235 35 G G 392 232 262.24 5.9 KE 45/5 - DOUBLE-IMPELLER CENTRIFUGL ELECTRIC PUMPS FOR WTER SUPPLY IN DOMESTIC, CIVIL, ND INDUSTRIL ENVIRONMENTS Pumped liquid temperature range: from - C to +5 C - Maximum ambient temperature: +4 C P kpa 5 4 8 2 6 2 24 H 4 8 2 6 2 m 5 Q US gpm Q IMP gpm H ft 7 4 3 4 3 6 5 4 2 2 NPSH m NPSH 3 ft 7 2 2 5 5 3 5 2 3 4 5 6 Q m 3 /h P η η% 2 3 mm 2 /s and density equal to /m 3. Curve tolerance according to ISO 996. 2,5,5 P 2 3 4 5 6,5,5 2 4 6 8 2 Q m3/h Q l/s Q l/min MX B C D E F G ØI H H H2 DN DNM ELECTRICL DT P2 NOMINL CPCITOR n. /min. μf Vc K 45/5 M x22-24 V ~.86..5 8.3 29.2 28 3.5 45 K 45/5 T 3x23-4 V ~.96..5 7.2-4 IE2 3.-8 285 PCKING DIMENSIONS L/ L/B H K 45/5 37 2 75 44 69 5 65.5 268 8 5 / 4 G G 45 234 295.28 23.3 DB PUMPS reserves the right to make modifications without notice. 3
KE 55/5 - DOUBLE-IMPELLER CENTRIFUGL ELECTRIC PUMPS FOR WTER SUPPLY IN DOMESTIC, CIVIL, ND INDUSTRIL ENVIRONMENTS Pumped liquid temperature range: from -5 C to + C - Maximum ambient temperature: +4 C CENTRIFUGL PUMPS mm 2 /s and density equal to /m 3. Curve tolerance according to ISO 996. MX B C D E F G ØI H H H2 DN DNM ELECTRICL DT P2 NOMINL CPCITOR n. /min. μf Vc K 55/5 M x22-24 V ~ 2.7.85 2.5 2.8 48 285 4 45 K 55/5 T 3x23-4 V ~ 2.5.85 2.5 8.4-4.8 IE2 37.6-2.7 285 PCKING DIMENSIONS L/ L/B H K 55/5 37 2 75 44 69 5 65.5 268 8 5 / 4 G G 45 234 295.32 27.2 KE 35/ - DOUBLE-IMPELLER CENTRIFUGL ELECTRIC PUMPS FOR WTER SUPPLY IN DOMESTIC, CIVIL, ND INDUSTRIL ENVIRONMENTS Pumped liquid temperature range: from - C to +5 C - Maximum ambient temperature: +4 C mm 2 /s and density equal to /m 3. Curve tolerance according to ISO 996. MX B C E F G ØI H H DN DNM ELECTRICL DT P2 NOMINL CPCITOR n. /min. μf Vc K 35/ M x22-24 V ~.56..5 7. 33 278 25 45 K 35/ T 3x23-4 V ~.65..5 6.5-3.5 IE2 2 285 PCKING DIMENSIONS L/ L/B H K 35/ 387 25 88 69 2 45 233 8 / 2 G G 45 234 295.28 22 DB PUMPS reserves the right to make modifications without notice. 3
KE 4/ - DOUBLE-IMPELLER CENTRIFUGL ELECTRIC PUMPS FOR WTER SUPPLY IN DOMESTIC, CIVIL, ND INDUSTRIL ENVIRONMENTS Pumped liquid temperature range: from - C to 5 C - Maximum ambient temperature: +4 C CENTRIFUGL PUMPS mm 2 /s and density equal to /m 3. Curve tolerance according to ISO 996. MX B C D E F G ØI H H DN DNM ELECTRICL DT P2 NOMINL CPCITOR n. /min. μf Vc K 4/ M x22-24 V ~ 2.85 2.5 9 45 285 4 45 K 4/ T 3x23-4 V ~ 2.85 2.5 7-4 IE2 22 285 PCKING DIMENSIONS L/ L/B H K 4/ M 46 25 88 79 2 2 45 233 8 / 2 G G 5 234 285.34 25.9 K 4/ T 387 25 88 79 2 2 45 233 8 / 2 G G 45 234 295.28 22 KE 55/ - DOUBLE-IMPELLER CENTRIFUGL ELECTRIC PUMPS FOR WTER SUPPLY IN DOMESTIC, CIVIL, ND INDUSTRIL ENVIRONMENTS Pumped liquid temperature range: from - C to +5 C - Maximum ambient temperature: +4 C mm 2 /s and density equal to /m 3. Curve tolerance according to ISO 996. MX ELECTRICL DT P2 NOMINL K 55/ T 3x23-4 V ~ 3.9 2.2 3.6-6.7 IE2 67.5-39 285 B C D E F G ØI H H H2 DN DNM PCKING DIMENSIONS L/ L/B H K 55/ 45 256 88 6 72 8 2 4 32.5 4 72.5 / 2 G G 5 274 333.45 38. n. /min. DB PUMPS reserves the right to make modifications without notice. 32
KE 66/ - DOUBLE-IMPELLER CENTRIFUGL ELECTRIC PUMPS FOR WTER SUPPLY IN DOMESTIC, CIVIL, ND INDUSTRIL ENVIRONMENTS Pumped liquid temperature range: from -5 C to + C - Maximum ambient temperature: +4 C CENTRIFUGL PUMPS mm 2 /s and density equal to /m 3. Curve tolerance according to ISO 996. MX ELECTRICL DT P2 NOMINL K 66/ T 3x23-4 V ~ 4.7 3 4 4.6-8.4 IE2 3.8-6 29 n. /min. B C D E F G ØI H H H2 DN DNM PCKING DIMENSIONS L/ L/B H K 66/ 45 256 88 6 72 8 2 4 32.5 4 72.5 / 2 G G 5 274 333.45 4.7 KE 9/ - DOUBLE-IMPELLER CENTRIFUGL ELECTRIC PUMPS FOR WTER SUPPLY IN DOMESTIC, CIVIL, ND INDUSTRIL ENVIRONMENTS Pumped liquid temperature range: from -5 C to + C - Maximum ambient temperature: +4 C mm 2 /s and density equal to /m 3. Curve tolerance according to ISO 996. MX ELECTRICL DT P2 NOMINL K 9/ T 3x23-4 V ~ 5.4 4 5.5 6.5-9.5 IE2 3.8-6 285 n. /min. B C D E F G ØI H H H2 DN DNM PCKING DIMENSIONS L/ L/B H K 9/ 45 256 88 6 72 8 2 4 32.5 4 72.5 / 2 G G 5 274 333.45 44 DB PUMPS reserves the right to make modifications without notice. 33
KE 7/3 - DOUBLE-IMPELLER CENTRIFUGL ELECTRIC PUMPS FOR WTER SUPPLY IN DOMESTIC, CIVIL, ND INDUSTRIL ENVIRONMENTS Pumped liquid temperature range: from -5 C to + C - Maximum ambient temperature: +4 C CENTRIFUGL PUMPS mm 2 /s and density equal to /m 3. Curve tolerance according to ISO 996. MX ELECTRICL DT P2 NOMINL K 7/3 T 3 x 23-4 V ~ 7. 5.5 7.5 2.9 IE2 77.9 29 n. /min. B C D E F G ØI H H H2 DN DNM PCKING DIMENSIONS L/ L/B H K 7/3 595 27 22 82 6 2 2 4 34 6 8 2 G / 4 G 68 33 47.6 72 star start-up possible ( ) Y KE 8/3 - DOUBLE-IMPELLER CENTRIFUGL ELECTRIC PUMPS FOR WTER SUPPLY IN DOMESTIC, CIVIL, ND INDUSTRIL ENVIRONMENTS Pumped liquid temperature range: from -5 C to + C - Maximum ambient temperature: +4 C mm 2 /s and density equal to /m 3. Curve tolerance according to ISO 996. MX ELECTRICL DT P2 NOMINL K 8/3 T 3 x 23-4 V ~ 9. 7.5 5.2 IE3 2 29 n. /min. B C D E F G ØI H H H2 DN DNM PCKING DIMENSIONS L/ L/B H K 8/3 595 27 22 82 6 2 2 4 34 6 8 2 G / 4 G 68 33 47.6 78.5 star start-up possible ( ) Y DB PUMPS reserves the right to make modifications without notice. 34
KE 7/4 - DOUBLE-IMPELLER CENTRIFUGL ELECTRIC PUMPS FOR WTER SUPPLY IN DOMESTIC, CIVIL, ND INDUSTRIL ENVIRONMENTS Pumped liquid temperature range: from -5 C to + C - Maximum ambient temperature: +4 C CENTRIFUGL PUMPS mm 2 /s and density equal to /m 3. Curve tolerance according to ISO 996. MX ELECTRICL DT P2 NOMINL K 7/4 T 3 x 23-4 V ~ 9.2 9.2 2.5 5.5 IE3 35 293 n. /min. B C D E F G ØI H H H2 DN DNM PCKING DIMENSIONS L/ L/B H K 7/4 635 27 22 82 6 2 2 4 34 6 8 2 G / 4 G 68 33 47.6 74 star start-up possible ( ) Y KE 8/4 - DOUBLE-IMPELLER CENTRIFUGL ELECTRIC PUMPS FOR WTER SUPPLY IN DOMESTIC, CIVIL, ND INDUSTRIL ENVIRONMENTS Pumped liquid temperature range: from -5 C to + C - Maximum ambient temperature: +4 C mm 2 /s and density equal to /m 3. Curve tolerance according to ISO 996. MX ELECTRICL DT P2 NOMINL K 8/4 T 3 x 23-4 V ~.8 5 8.5 IE3 93 294 n. /min. B C D E F G ØI H H H2 DN DNM PCKING DIMENSIONS L/ L/B H K 8/4 635 27 22 82 6 2 2 4 34 6 8 2 G / 4 G 68 33 47.6 78 star start-up possible ( ) Y DB PUMPS reserves the right to make modifications without notice. 35